Washington (PA) monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Washington

Washington average temperature chart (Celsius) Washington average temperature chart (Fahrenheit)
Average monthly temperatures in Washington (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 1.6 3.4 10 16.2 21.9 26.3 28.2 27.3 23.8 17.4 10.8 4.3
°F 34.8 38.1 50 61.1 71.5 79.3 82.7 81.1 74.8 63.3 51.5 39.8

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Washington monthly rainfall chart (mm) Washington monthly rainfall chart (inches)
Average monthly rainfall in Washington (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 67 64 90 87 102 99 107 91 79 66 78 77
inches 2.6 2.5 3.6 3.4 4 3.9 4.2 3.6 3.1 2.6 3.1 3
Rainy days 16 14 16 14 13 12 11 10 10 11 13 17

Average annual rainfall in Washington: 966.5mm (380.5 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Washington

Washington average daily sunshine chart
Average daily sunshine Washington
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3.3 4.2 5.4 6.5 7.5 8.5 8.5 7.7 6.9 5.8 3.5 2.6

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Washington average minimum / maximum temperatures (Celsius) Washington average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Washington (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -7.4 -6.4 -1.3 3.5 8.8 13.4 16 15.3 11.6 5.3 1 -4.2
Max °C 1.8 3.6 10.3 16.5 22.3 26.6 28.5 27.6 24.1 17.7 11.1 4.6
Min °F 18.7 20.5 29.7 38.3 47.8 56.1 60.7 59.5 52.8 41.5 33.7 24.5
Max °F 27 29.5 40.1 50 59.9 68 72 70.5 64 52.7 42.8 32.4

Sea temperature

The graph below shows the average sea temperature.

Washington average sea temperature chart (Celsius) Washington average sea temperature chart (Fahrenheit)
Average sea temperature around Washington in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 3.2 2.3 2.4 4.7 10.1 17.3 22.4 23.3 21 15.8 10.4 5.8
°F 37.8 36.1 36.3 40.5 50.2 63.1 72.3 73.9 69.8 60.5 50.7 42.4

Wind speed

The graph below shows the average wind speed.

Washington average winspeed by month (km/h) Washington average winspeed by month (mph)
Average wind speed in Washington (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 17 17 17 17 14 13 12 11 12 14 16 17
mph 11 11 11 10 9 8 7 7 7 9 10 11

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Washington relative humidity averages
Average relative humidity in Washington
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
71% 68% 65% 62% 65% 68% 71% 73% 74% 70% 71% 73%

Other monthly averages

UV index Best time to go?

Washington weather stats

Washington weather statistics
Hottest month: July 28.2°C 82.8°F
Driest month: February 64mm 2.5ins
Sunniest month: July 8.5hrs
Coldest month: January 1.6°C 34.9°F
Wettest month: July 107mm 4.2ins
Warmest sea: August 23.3°C 73.9°F
Map showing location of Washington (40.17396, -80.24617) Washington map pin © Google

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